import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // getToken from cookie

NProgress.configure({ showSpinner: false }) // NProgress Configuration

// // permission judge function
// function hasPermission(perms, permissions) {
//   if (perms.indexOf('*') >= 0) return true // admin permission passed directly
//   if (!permissions) return true
//   return perms.some(perm => permissions.indexOf(perm) >= 0)
// }

const whiteList = ['/login', '/auth-redirect'] // no redirect whitelist

router.beforeEach((to, from, next) => {
  NProgress.start() // start progress bar
  if (getToken()) {
    if (to.path === '/login') {
      next({ path: '/' })
      NProgress.done() // if current page is dashboard will not trigger	afterEach hook, so manually handle it
    } else {
      if (store.getters.perms.length === 0) {
        // 判断当前用户是否已拉取完user_info信息
        store
          .dispatch('GetUserInfo')
          .then(res => {
            // 拉取user_info
            const user_info = res.data.data
            const perms = ['*'] // note: perms must be a array! such as: ['GET /aaa','POST /bbb']
            store.dispatch('GenerateRoutes', { perms, user_info }).then(() => {
              // 根据perms权限生成可访问的路由表
              router.addRoutes(store.getters.addRouters) // 动态添加可访问路由表
              next({ ...to, replace: true }) // hack方法 确保addRoutes已完成 ,set the replace: true so the navigation will not leave a history record
            })
          })
          .catch(err => {
            console.log('err===>', err)
            store.dispatch('FedLogOut').then(() => {
              Message.error(err || 'Verification failed, please login again')
              next({ path: '/' })
            })
          })
      } else {
        next()
        // // 没有动态改变权限的需求可直接next() 删除下方权限判断 ↓
        // if (hasPermission(store.getters.perms, to.meta.perms)) {
        //   next()
        // } else {
        //   next({ path: '/401', replace: true, query: { noGoBack: true }})
        // }
        // // 可删 ↑
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // 在免登录白名单，直接进入
      next()
    } else {
      next(`/login?redirect=${to.path}`) // 否则全部重定向到登录页
      NProgress.done() // if current page is login will not trigger afterEach hook, so manually handle it
    }
  }
})

router.afterEach(() => {
  NProgress.done() // finish progress bar
})
